Method for Monitoring a Transmitter and Corresponding Transmitter

1. A method for monitoring a transmitter having at least one measurement unit, a transmission unit, the measurement unit being interconnected with the transmission unit at least for transmission of signals, and at least one connecting line for supplying power to the measurement unit, comprising the steps of: using the measurement unit to determine at least one measurement quantity that is related to at least one of a physical and/or chemical measurement or process quantity and to produce a measurement signal which is dependent on the at least one measurement quantity, receiving the measurement signal from the measurement unit by the transmission unit and using the transmission unit for transferring an output signal based on the measurement signal to at least one signal transmission element, acting on the at least one connecting line with the measurement unit when the measurement unit detects the presence of an error state, and wherein an amount of energy stored in the transmitter is influenced via the acting on the connecting line such that a charging state monitoring unit detects a charging state error.

2. The method in accordance with claim 1 , wherein, when the measurement unit detects the presence of an error state, at least one of shifting the transmission unit into a definable state and transferring an error signal to the transmission unit by said acting on the connecting line with the measurement unit.

3. The method in accordance with claim 1 , wherein, when the measurement unit detects the absence of an error state, a measurement signal which has been generated by the measurement unit as a result of determining said at least one measurement quantity is transferred to the transmission unit.

4. The method in accordance with claim 1 , wherein the measurement unit acts on the connecting line such that an energy value which has been tapped from the measurement unit is outside a definable region.

5. The method in accordance with claim 1 , wherein the measurement unit acts on the connecting line in a manner interrupting the connecting line.

6. A transmitter, comprising: at least one measurement unit which determines at least one measurement quantity that is related to at least one of a physical and/or chemical measurement or process quantity and produces a measurement signal which is dependent on said at least one measurement quantity, a transmission unit interconnected with the measurement unit in a manner at least for receiving the measurement signal from the measurement unit and for transferring an electrical output signal to at least one signal transmission element based on a measurement signal received, and at least one connecting line for transmitting energy to the measurement unit, wherein the measurement unit is connected so as to act on the connecting line when an error state is found to exist, and wherein the measurement unit is adapted for shifting the transmission unit into a definable state and transferring an error signal to the transmission unit via acting on the connecting line, and wherein an amount of energy stored in the transmitter is influenced via the measuring unit acting on the connecting line such that a charging state monitoring unit detects a charging state error.

7. The transmitter in accordance with claim 6 , wherein there is at least one switch for opening and closing of the connecting line.